Slate-cleaner



(No Model.)

J. M. MO'FARLAND.

SLATE CLEANER. No. 404,795. Patented June 4, 1889.

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UNITED STATES PATE T OFFICE.

JAMES M. MOFARLAND, OF COLUMBUS, OHIO.

SLATE-CLEANER.

SPECIFICATION forming part of Letters Patent N0. 404,795, dated June 4,1889.

Application filed August 30, 1888. Serial No. 284,155. (No model.) I

To all whom, it may concern:

Be it known that I, J AMES M. MOFARLAND, a citizen of the United States,residing at C0- lumbus, in the county of Franklin and State of Ohio,have invented a certain new and useful Improvement in Slate-Cleaners, ofwhich the following is a specification.

My invention relates to that class of slatecleaners in which awashing-sponge and drying-cloth are contained within and connected witha cylindrical case.

The objects of my invention are to provide a simple and inexpensive formof slate-cleaner, to so construct the same as to admit of the slatebeing first washed and then rubbed dry, and to provide the case with asupply-sponge so located as to admit of moisture being transmittedtherefrom to the erasing-or cleaning sponge. These objects areaccomplished in the manner illustrated in the accompanying drawings, inwhich Figure l is a side elevation of my device. Fig.2 is a verticallongitudinal section of the same, taken on line a a: of Fig. 3. Fig. 3is a plan View of my device, showing the dryingcloth removed. Fig. 4 isa transverse section taken on line y y of Fig. 1. Fig. 5 is a view inelevation of the lower end of the case with the protecting-threadsremoved.

Similar letters refer to similar parts throughout the several views.

A represents a cylindrical case, which is preferably formed of thinmetal. At about the center of its height the case A is provided with acircumferential bead a, thus forming an internal groove, in which ismade to rest the edge of a metallic disk-shaped partition I). Thispartition is supplied with a number of perforations b.

0 represents a follower, consisting of a metallic disk having downwardlyextending a circumferential flange. The follower is adapted to fit andto be made to slide within the up per end of the case A.

d represents a circular bail of slightly greater circumference than thecase A, said bail being hinged 011 one side, as shown, to a lug a, madeto project outwardly from the case A near its upper end.

Formed about the lower end of case A is a row of perforations 6, throughwhich is made to pass a suitable cord or thread f, said cord passingoutwardly through said perforations,

thence beneath the edge of the case, upward and again outward, thuscovering or partially covering the lower edge of the case, for thepurpose hereinafter specified. Within the lower compartment of the caseA is fitted a cleaning-sponge g, the lower end of which is allowed toproject outwardly through the lower end of said case.

Within the upper compartment of the case A, and resting upon thepartition 1), is a supply-sponge h. Over this supply-sponge h is placedthe follower c, as shown in Fig. 2 of the drawings. The bail d havingbeen turned back from the case, a suitable-clothe, of any desiredmaterial, is laid over the upper end of the case and upon the upper sideof the follower in. such position that its edges will overlap the upperend of said case. The cloth is then secured in its position by loweringthe bail d over the upper end of said case, and thus binding theoverlapping portion of the cloth 2' against the case.

The operation of my device is as follows: The sponges h and g havingfirst been saturated with water and being in the above-describedpositions, the marks upon a slate or blackboard may be readily erased bygrasping the case A and rubbing said board or slate with the proj eoting end of the sponge g. This having been accomplished, the slate or boardmay be dried by reversing the case and rubbing said slate or board withthe dry clothcovered end.

It will be seen that when the erasing-sponge 9 becomes dry it may besupplied with moisture by pressure upon the cloth-covered follower 0,thus causing through the descent of the latter in the case a sufficientpressure upon the supply-sponge to force the water down therefromthrough the perforations of the partition 1) into the sponge g.

It is obvious that the sponge h, being protected from the air, willretain moisture a much greater length of time than the exposed sponge g,thus admit-ting of the use of my cleaning device for a considerablelength of time without necessitating the resaturation of the sponges.

The lower end of the case, being protected 2. The combination, with thecase A, having perforated partition I) and hinged bail d, of the supplyand erasing sponges h and 9, located within the case, as described,follower c, and drying-cloth i, the latter held by bail (1, described,substantially as and for the purpose specified.

JAMES M. MCFARLAND. In presence of-- W. S. SHEPHERD, C. O. SHEPHERD.

